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A miniaturized multiband broadband quasi‐self‐complementary antenna (QSCA) is presented, which mainly consists of a third‐step radiation patch on the right and a third‐step wide slot on the left. With the help of an L‐shaped metal ground patch, a coplanar waveguide (CPW)‐like matching technique is used to improve the impedance matching of the antenna. To further compress the antenna, a U‐shaped slot...
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